The Northern Belle Extension Mining Company was a silver mining company with headquarters in New York City and mining operations based in Candelaria, Nevada in the Columbia Mining District during the 1920s. The Candelaria and Columbia district mines, the biggest of which was named Northern Belle, had been a boon to silver miners and speculators during the last quarter of the nineteenth century but production dropped off in the 1890s due to the economic downturn. The district experienced a slight resurgence in the late 1910s and 1920s when the Candelaria Mines Company reinitiated operations in the region. The Northern Belle Extension Mining Company also began operations during this period but the district never returned to its previous prosperity.
The Northern Belle Extension was a small operation directed largely by two men, William E. Pomeroy, Vice President and Manager and John Winn, President and Treasurer of Northern Belle Extension Mining Company. Pomeroy was a longtime miner and resident of the American West who lived in Candelaria during the 1920s. He managed the company's daily operations, surveying of new claims, and its business contacts in Nevada, Arizona, and California. As a prospector and engineer, Pomeroy both worked in the mining operations and assessed new areas for potential silver ore deposits. He was involved in a number of additional business ventures with individuals in Nevada and California, regarding real estate, oil leases, and swine contracting. He had business contacts in Los Angeles and on several occasions travelled between Los Angeles and Candelaria. John H. Winn lived in New York City and managed the company's finances.
From the description of Records of Northern Belle Extension Mining Company, 1922-1932. (Huntington Library, Art Collections & Botanical Gardens). WorldCat record id: 401780258
